Lace front units are inherently different from "full lace wigs". To understand how to maintain a lace front, you must first understand the construction. A lace front unit has two main sections to the cap: a lace frontal piece, and a wefted back piece. The hairs on the lace frontal piece are individually hand-tied to the lace, however, the hairs on the wefted portion are machine sewn. In contrast, the hairs on the entire cap of a full lace wig are "hand-tied". This difference is a portion of why you will find slightly more shedding in a lace front wig than you would a full lace wig.
The hair in the wefted portion of the unit is more prone to slipping out and shedding, than the hair that is individually hand-tied to the lace. With this in mind, here are some tips to help minimize shedding: